You can pay your business tangible property taxes on your furniture, equipment, computers, machinery, tools, and business vehicles on the online payment portal. Tangible personal property used in research and development business .All Arlington County businesses must file a Business Tangible Personal Property Return each year on or before May 1. All business owners, including home based businesses, are required to file a business tangible personal property return and current asset list annually. Please use the Tax Portal or the Business Personal Property Return below to file your annual business personal property return before the April 15th due date. File your Business Tangible Personal Property (BTPP) tax return online HERE or download a printable copy of the return HERE to submit a hard copy.